Its short lifespan and greater potency means tackling methane emissions now could have a dramatic effect on atmospheric greenhouse gas concentrations.

Aid agencies are well resourced and quick to act, but not enough of them appear to be using their power to tackle the long term problems posed by climate change. Aid agencies are first on the scene of many of the world's trouble spots, and often play a huge role in helping communities get back on their feet.

Attempts to halt and reverse a decade of worsening air quality in London are being held up by political indecision. After steady rises in air quality up until the turn of the century, London should be well on the way to tackling one of the most serious public health concerns today.

Well-publicised simple steps like using energy-saving light bulbs may be making it more difficult to prepare people for the bigger changes needed to tackle climate change, argue psychologists.

Hostile police tactics at the Kingsnorth and G20 camps has not put protesters off as climate camp goes global.

The findings from the FSA's organic food review have added little to our knowledge but left consumers short-changed on real benefits of organic food.

Giant wind farms may grab the headlines but plans to develop local off-grid electricity will have bigger impact on Africans and carbon emissions.

The Greening-the-Box initiative aims to demonstrate that retrofitting can transform hard-to-heat housing association and council properties into models of low-tech sustainability and fuel efficiency - with almost zero heating.

A new report has revealed that a change in the way we manage agricultural land could help sequester a quarter of the world's carbon dioxide emissions every year.

Plants can be much more than a pretty backdrop to life. Read this and you'll never look at a garden in the same way again...

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